What was the purpose for the building of the Great Wall of China?
The Great Wall served many purposes. To keep invaders out – The Great Wall was a psychological as well as physical barrier against invading military forces. To serve as lookout posts – The elevated locations of the Great Wall and its towers enabled distant observation for invaders to provide the earliest possible warning. To provide a communication and early warning system – Relaying from one watchtower to another using fire signals at night and smoke signals during the day, messages could be sent over long distances in a short time. As an elevated roadway along the border – This enabled rapid deployment of personnel from one place to another.
